Flora of North America species comparison

erect, usually simple, 30–150 cm, with short, dense, eglandular pubescence, sparsely so toward base.

erect, simple proximal to inflorescence, 7–20 cm, with 2–4 pairs of leaves, short retrorse-pubescent proximally, stipitate-glandular and viscid distally, with purple-septate hairs.

sessile, 2 per node;

blade prominently 3–5-veined, ovate-acuminate, round at base, (4–)6–10(–13) cm × (20–)30–50(–90) mm, appressed-pubescent on both surfaces.

basal pseudopetiolate, tufted, blade narrowly oblanceolate, 1.5–5 cm × 1.5–5 mm, base narrowed into long pseudopetiole, retrorse-puberulent on both surfaces;

cauline sessile, connate at base, blade linear to linear-lanceolate or linear-oblanceolate, 1–4 cm × 1.5–4 mm, apex acute.

paniculate, narrow, many-flowered, open, bracteate, pedunculate, 10–50 × 3–5 cm, densely puberulent;

bracts narrowly lanceolate, 3–15 mm, apex acuminate;

peduncle ascending.

1(–3)-flowered.

ascending, recurved near apex, ca. equaling calyx.

erect, rarely somewhat curved or reflexed near tip, 0.5–2 cm, 1/2–3 times calyx, viscid with stipitate-glandular and purple-septate hairs, hairs less than 1/2 pedicel diam.

nocturnal;

calyx prominently 10-veined, tubular to narrowly campanulate and 6–9 × 3–4 mm in flower, turbinate and 10–12 × 4–5 mm in fruit, narrowed proximally around carpophore, veins parallel, green, broad, with pale commissures, puberulent, sometimes with few glands, lobes triangular-acute, 2–3 mm;

corolla white, clawed, claw equaling calyx, broadened into limb, limb obtriangular, deeply lobed, 7–9 mm, lobes ca. 8, linear, appendages minute;

stamens slightly longer than corolla;

styles 3, ca. 2 times as long as corolla.

10–12 mm diam.;

calyx prominently 10-veined, ellipsoid, somewhat inflated and contracted at mouth to 1/2–2/3 diam., 12–14 × 6–7 mm in flower, 14–17 × 7–8 mm in fruit, to 2 times as long as broad, papery, margins dentate, lobes 5, patent, ca. 2 mm, with broad, membranous margins, apex obtuse, pubescent, hairs short and stipitate-glandular and long purple-septate;

corolla pink to purple, slightly longer than calyx, limb 2-lobed, 4–5 mm, with 2 short (ca. 0.5 mm) appendages;

stamens equaling corolla;

stigmas (4–)5, equaling corolla.

narrowly ovoid, slightly longer than calyx, opening by 3 (splitting into 6) ascending teeth;

carpophore 2–2.5 mm.

equaling calyx, opening by 5 recurved teeth, which later split into 10;

carpophore very short or absent.

dark brown, reniform, 0.8–1.5 mm, shallowly tuberculate.

dark brown, reniform, not winged, 0.7–1 mm, papillate-tuberculate.

= 48.